LM2585SX-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM2585SX-5.0/NOPB is a step-up (boost) switching regulator IC from Texas Instruments, part of the SIMPLE SWITCHER family. It provides a fixed 5V output with a maximum switch current of 3A. The device operates with an input voltage range of 4V to 40V and supports boost, flyback, and forward converter topologies. It features a switching frequency between 100kHz and 200kHz and is housed in a TO-263-8 (D2PAK) surface-mount package. The component is rated for operation over a junction temperature range of -40°C to 125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-current power switch capable of delivering up to 3A
• Fixed 5V output configuration for simplified design
• Supports multiple converter topologies including boost, flyback, and forward
• Operates efficiently at switching frequencies up to 200kHz

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered systems requiring voltage step-up
• Industrial control power supplies
• Automotive electronics applications
• General-purpose DC-DC conversion modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number includes the suffix /NOPB to confirm lead-free and RoHS compliance status as specified by Texas Instruments. Confirm the package type matches the required board layout, specifically the TO-263-8 form factor. Ensure thermal management solutions are adequate for the expected load conditions within the specified operating temperature range.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V output is required from an input source ranging between 4V and 40V. It is suitable for designs needing up to 3A of switch current without external pass transistors. Consider the TO-263-8 package for its thermal performance in surface-mount applications. Verify that the application topology aligns with the device's support for boost, flyback, or forward configurations.

Voltage Regulators - DC DC Switching Regulators Part Context

The LM2585 series belongs to Texas Instruments' SIMPLE SWITCHER line of monolithic switching regulators. These devices integrate a power switch and control circuitry to simplify power supply design. The LM2585SX-5.0 variant specifically offers a fixed 5V output, distinguishing it from adjustable versions in the same family. It is designed for efficiency and ease of use in various industrial and consumer applications.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for direct replacements such as LM2585SX-ADJ/NOPB if variable output is needed. Verify pin compatibility with other SIMPLE SWITCHER boost regulators from Texas Instruments. Cross-reference specifications with similar parts from other manufacturers only if electrical parameters and package dimensions match exactly.